- #1

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I have a question about the sign of Schrodinger equation in particle in a box.

What's the meaning of the sign (like -, +) of wavefunction in particle in a box?

Can anybody explain that?

Thank you.

- Thread starter Alice Jin
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- #1

- 18

- 0

I have a question about the sign of Schrodinger equation in particle in a box.

What's the meaning of the sign (like -, +) of wavefunction in particle in a box?

Can anybody explain that?

Thank you.

- #2

malawi_glenn

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WHAT sign? Clarify.

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- #4

malawi_glenn

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What is the strange thing about that, what make you wanna ask this question?

- #5

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I'm just curious about what the + and - sign of wavefunction stand for.

I know if there is a change of sign, at that point there is a node.

But basically I want to know the meaning of the sign.

- #6

malawi_glenn

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There is no meaning about the sign of the wavefunction. The wavefunction is interprented as to the be probability density amplitude, and amplidtudes can attain both positive, negative and Complex values. So there is nothing strange that wave function have some negative and some positive values.

- #7

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Then, how can you explain the sudden probability change in a node?

- #8

malawi_glenn

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define "sudden" change, I dont think that is a mathematical term..

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- #10

malawi_glenn

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However, the wave function is only EXAKT 0 for ONE point. Now recall from calculus the "length" of a point....

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